Martial Arts and Philosophy: Beating and Nothingness is now in stock in the United States. It'll be in the UK and Australia later this year.
If you're spoiling for a smart, funny marriage of fighting and thinking - well, suit up, take a bow and put up your intellectual dukes. (And other lame puns).
You can buy it in all good bookshops, and online on Amazon, Barnes and Noble, Borders, Powell's. And for lovers of ereaders, there are Kindle and Nook editions.